Illuminance plots

produced from photometry file Lithonia_Lighting-Outdoor-Area-KADT-94042705A.ies

spacing 5 plot single luminaire plot
In the left half of the left plot, specific illuminance by a continuous row of luminaires spaced 5 heights is shown (right half is for a single luminaire). The right plot is for a single luminaire, unrotated.

illuminance scale

Values below the scale are illuminance / 1 lx. This is for (unrealistic) “unit” case that luminaires would have lamps producing 1 klm only, would be point-like and just 1 m over the terrain.

ies2tab text output:

   
       
# IESNA91
# [TEST] 1194042705
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] KADT 250M R5S
# [LUMINAIRE] DIE CAST SHOEBOX
# [LAMPCAT] M250/U
# [LAMP] ONE 250-WATT CLEAR BT-28 METAL HALIDE, HORIZONTAL POSITION.
# [_PRODUCTGROUP] OUTDOOR
# [_INFOLINK] www.lithonia.com/visual/ies/ies.asp?vfile=
# TILT=NONE
# Bulbs: 1,  20000 lm each
# Number of measured angles:  33 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening width, length and height:   1.250   1.250   0.000
# Ballast factor: 1,  Input power:  297 W


# Source file: Lithonia_Lighting\Outdoor\Area\KADT\94042705A.ies
# Luminaire flux = 13183 lm,
#                   65.9 % of the bulb flux
# between 75 and 90:  0.1 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   0.9 cd/1000lm ,  0.0 % of the luminaire flux
# 90deg and above:  max   0.0 cd/1000lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# The following table gives luminous intensities which would be produced
# using a hypothetic bulb giving a luminous flux of 1000 lm (i.e., cd/klm):

#  H:   0.0   5.0  15.0  25.0  35.0  45.0  55.0  65.0  75.0  85.0  90.0  95.0 105.0 115.0 125.0 135.0 145.0 155.0 165.0 175.0 180.0
#V:  
  0.0 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4 161.4
  5.0 168.1 168.2 167.8 168.9 168.4 170.1 170.1 168.9 168.9 167.9 167.2 167.8 166.1 165.6 164.9 165.3 164.8 165.1 164.6 164.8 163.6
 10.0 173.6 174.3 175.0 177.2 179.3 181.0 182.3 185.5 187.9 189.6 189.8 189.9 189.6 187.4 185.6 182.4 177.3 174.6 172.4 171.6 171.7
 15.0 179.0 177.3 179.9 184.8 193.3 202.1 213.4 223.3 232.4 235.9 237.0 236.2 231.9 226.4 217.6 207.6 197.9 187.5 179.3 177.0 176.4
 20.0 168.9 168.9 176.5 191.6 213.5 241.3 266.1 284.7 297.6 304.4 306.0 305.9 299.8 285.9 266.3 245.6 223.8 201.9 184.9 177.3 176.4
 22.5 165.4 166.1 175.6 199.5 230.0 263.0 290.4 316.5 330.4 332.0 331.0 331.5 329.5 311.2 288.5 265.9 238.6 209.3 187.1 172.6 171.9
 25.0 164.5 165.3 177.8 207.6 249.1 284.0 316.4 346.6 355.2 360.3 364.5 365.0 360.0 345.1 315.1 283.4 251.7 221.1 191.0 173.9 170.5
 27.5 163.4 166.2 192.1 232.1 280.8 319.8 359.9 387.3 400.9 411.9 416.2 416.5 406.1 397.0 363.9 322.0 280.5 243.4 207.1 175.4 171.7
 30.0 156.3 160.4 196.1 246.4 282.6 320.6 358.0 359.8 359.3 365.0 373.5 374.3 368.4 374.8 374.6 330.3 288.9 254.8 211.3 173.4 167.7
 32.5 146.0 148.9 175.8 219.1 253.0 252.4 280.3 299.0 270.0 267.9 271.5 265.9 275.4 297.8 313.5 286.6 257.5 240.6 200.1 163.1 156.9
 35.0 139.1 141.4 162.1 188.2 221.1 219.2 229.9 251.4 221.8 216.7 222.1 221.6 229.6 257.2 261.7 242.2 229.6 219.4 189.0 156.1 153.6
 37.5 130.2 131.8 148.2 161.9 191.9 186.6 193.6 220.9 192.1 190.4 193.6 191.0 190.1 221.4 220.4 203.3 199.6 192.5 175.9 150.3 146.4
 40.0 122.8 124.3 139.3 146.8 171.9 162.6 170.4 200.6 180.4 183.8 185.7 178.3 169.4 191.4 189.0 173.6 175.8 170.7 163.2 145.5 144.9
 42.5 122.3 123.6 132.2 139.4 157.9 150.6 157.8 187.0 180.3 174.9 175.9 167.9 165.4 171.8 165.8 160.7 162.5 158.9 154.1 144.6 143.4
 45.0 123.6 124.9 128.6 135.3 156.4 145.9 147.7 179.6 175.8 164.3 165.3 158.7 164.4 166.5 151.5 156.1 158.7 152.9 150.3 146.3 146.4
 47.5 120.4 121.1 124.2 136.8 158.1 142.6 149.1 181.1 163.4 158.1 161.9 155.3 157.3 164.6 150.3 156.3 161.9 154.3 149.8 145.6 147.6
 50.0 111.5 110.4 121.0 139.9 158.7 144.1 154.3 190.4 156.3 162.1 170.9 160.9 154.6 171.4 158.4 157.9 165.1 154.8 145.4 138.1 142.4
 52.5  95.8  96.3 119.3 143.3 151.1 152.9 159.9 190.4 149.9 162.9 177.1 164.2 153.4 181.3 172.0 161.7 167.3 154.9 140.7 121.4 123.3
 55.0  85.7  89.1 120.7 139.9 147.8 158.1 158.8 187.2 143.9 158.5 176.8 163.1 148.6 181.8 177.9 164.2 163.4 151.6 137.0 108.3 104.4
 57.5  79.9  84.4 118.6 134.1 147.9 151.8 152.9 185.8 137.1 151.2 171.8 155.3 136.6 178.9 174.0 160.7 157.1 143.6 130.1  98.6  92.0
 60.0  65.2  74.7 110.2 122.6 140.4 142.6 142.5 170.3 125.6 133.5 152.0 138.2 121.3 169.4 166.3 147.1 147.1 131.4 118.1  81.5  74.6
 62.5  52.8  58.2  91.8 103.8 119.1  92.2  98.9 118.7  59.0  70.3  94.8  89.4  74.7 135.6 141.9 111.1 125.6 114.3  99.2  64.4  57.5
 65.0  23.3  25.9  49.3  57.7  55.6  52.1  63.0  53.2  25.4  23.4  26.9  26.6  23.9  45.8  80.6  58.2  71.3  84.3  70.8  43.5  39.8
 67.5  10.2  12.1  17.6  18.2  22.6  21.4  26.8  25.0  15.8  11.4  12.8  12.9  11.8  18.4  23.3  21.8  31.5  35.8  32.8  22.4  19.8
 70.0   6.0   7.3   8.8   7.8   9.4   9.8  11.4  11.6   8.3   5.8   6.4   6.6   6.0   7.3   8.6  10.6  14.6  15.7  17.1  13.4  12.9
 72.5   4.0   3.5   4.8   3.7   5.0   4.4   5.8   5.4   4.4   2.8   3.0   3.3   3.0   3.8   4.2   4.6   6.8   7.9   9.0   7.0   6.9
 75.0   1.4   2.0   2.1   1.4   2.2   1.7   2.5   2.9   1.7   1.5   0.9   1.1   1.5   1.9   1.9   2.5   3.0   2.7   3.5   2.9   3.5
 77.5   1.0   0.4   0.7   0.8   1.5   0.7   0.1   1.3   1.0   0.8   0.9   0.7   0.8   0.4   0.8   0.9   1.0   1.2   0.9   1.7   0.9
 80.0   0.2   0.3   0.5   0.4   0.3   0.2   0.0   0.3   0.2   0.2   0.2   0.1   0.2   0.2   0.0   0.2   0.4   0.2   0.4   0.4   0.9
 82.5   0.5   0.1   0.4   0.0   0.1   0.2   0.1   0.3   0.1   0.0   0.1   0.0   0.0   0.2   0.1   0.1   0.0   0.0   0.0   0.1   0.5
 85.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 87.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 90.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0

 

(A similar table including even some other results can be computed at producer's website.)